Mutely he pointed to the skin of the lynx which had fallen to his gun, mutilated a little, to be sure, by the charge of shot that had been the means of its death; but worth its weight in silver to the fat Nimrod; and Herb closed up like a clam.

In the morning they prepared to go on again; though Herb and Jack had, when by themselves, seriously talked over the subject; and were beginning to arrive at the conclusion that this tremendous fresh water sea was hardly the best cruising ground for such small craft as the motor boats; and that they would be wise to cut short their former intention of reaching Duluth.

“Better keep an eye out for dirty weather, boys!” the boss of the camp had observed, when shaking hands as they said good-bye.

Nick could see no signs of anything ahead that looked like a storm; and he was inclined to believe the other must be wrong in his guess.

“Must be one of them old croakers we hear so much about,” he remarked to Herb, as they went on along the coast of the Big Lake. “Always expecting things to happen that don’t come to pass. I don’t see any storm, do you?”

“Not a sign,” replied the skipper of the Comfort; who was anxiously keeping tabs on his engine, as though he had reason to fear a repetition of the former trouble.

But in the end it proved to be George who brought the little expedition to a halt. After acting so splendidly in that fierce race with the Flash, lo and behold, the motor of the Wireless broke down during the early afternoon.

They tinkered at it for an hour and more, Jack coming over to take a hand; but apparently little progress was made. Jack was worried. They were too far away from the fish camp to think of towing the disabled boat back; and a harbor did not offer within reaching distance beyond.

The afternoon began to wane, and there seemed nothing for it but that the three motor boats should anchor just where they were, and pass the night on the open water. All would be well if the weather remained fair, and no strong southerly wind arose during the night. Jack did not like to think what might happen in case such a thing did come about.